搜索结果: 1-15 共查到“知识库 水文图学”相关记录27条 . 查询时间(5.247 秒)
Model the effect of four artificial recharge dams on the quality of groundwater using geostatistical methods in GIS environment,Oman
artificial recharge TDS Total Dissolved Solid GPI Global Polynomial Interpolation IDW Inverse Distance Weighting TSA Trend Surface Analysis Kriging geostatistical analysis
2015/8/11
The geostatistical techniques of GPI, IDW and Kriging were applied in order to evaluate the use of these statistical approaches in GIS environment to examine artificial recharge dams and its effect on...
Generalised Long Duration Probable Maximum Precipitation (PMP) Isohyetal Map for Peninsular Malaysia
Probable Maximum Precipitation PMP Storm Duration Storm Maximization Historical Rainfall Transposition and Isohyetal Map
2015/8/6
Isohyetal maps were prepared to estimate Probable Maximum Precipitation (PMP) for long duration storms in Peninsular Malaysia. Historical storms of 1, 3 and 5-day durations from 21 rainfall recording ...
Hydrologic modeling of the Upper Suriname River basin using WetSpa and ArcView GIS
Geographic Information Systems Hydrologic modeling
2015/1/6
A grid-based distributed hydrological model WetSpa, compatible with ArcView GeographicInformation Systems (GIS), was applied to the 7,860 km2 Upper Suriname River basin. Modelparameters were derived f...
ＴＯＰＭＯＤＥＬ在韩江流域暴雨径流模拟中的应用研究
暴雨径流模拟 韩江棠荆流域
2015/10/12
该文借助 ＡｒｃＭａｐ与 ＧＲＩＤＡＴＢ计算地形指数—面积分布函数，运用 ＴＯＰＭＯＤＥＬ模型对广东省韩江棠荆流域的
暴雨径流进行研究，利用该流域１９８９—２００４年的降雨、蒸发与流量资料，采用地貌参数法与人工调参法对其中的６场洪
水进行模型参数的率定，使用另外的６场洪水进行模型的验证，并对影响模型模拟精度的因素进行了讨论。在参数率定
期及验证期的确定性系数平均值可达８２０５％和７６５８...
Efficient extraction of drainage networks from massive, radar-based elevation models with least cost path search
Efficient extraction drainage networks radar-based elevation
2011/3/15
The availability of both global and regional elevation datasets acquired by modern remote sensing technologies provides an opportunity to significantly improve the accuracy of stream mapping, especial...
Snow Cover of the Upper Colorado River Basin from Satellite Passive Microwave and Visual Imagery
Snow Cover Colorado River Basin Satellite Passive Microwave Visual Imagery
2009/10/27
A comparison of passive microwave images from the Nimbus-7 Scanning Multichannel
Microwave Radiometer (SMMR) and visual images from the Defense
Meteorological Satellite Program (DMSP) of the Upper C...
Snow Cover Mapping using Microcomputer Image Processing Systems
Snow Cover Microcomputer Image Processing Systems
2009/10/26
For many years, digital snow cover mapping using satellite data had to be
carried out on large and expensive image processing systems. Recently, small
computer systems (microcomputers) have been dev...
Hydrology of a Patterned Bog-Fen Complex in Southeastern Labrador,Canada
Patterned Bog-Fen Complex Southeastern Labrador
2009/10/26
A 0.05 km2 patterned bog and a 0.29 km2 ribbed fen were compared to determine
the influence of their morphometry on runoff and evapotranspiration.
The bog hydrology was dominated by irregularly loca...
Ice Conditions along the Estonian Coast in a Statistical View
Ice Conditions Estonian Coast Statistical View
2009/10/22
The paper presents the results from analysis of long-term (100-year) time series
of freezing, fast ice formation, disappearance of fast ice, break-up and ice thickness
for eight stations situated al...
A PHYSICAL -CHEMICAL CHARACTERIZATION OF THE MIRIÑAY RIVER, ARGENTINA, BY GRAPHICAL METHODS
physical-chemical characteristics Miriñ ay River graphical method
2009/10/13
A graphical method is applied to display the physical-chemical characteristics of the Miriñay River, Corrientes Province, Argentina. The graphical results show the following parameters: pH, alk...
A GENERALIZATION OF CLARK’S IUH FOR FLATLAND AREAS WITH STRONG HUMAN INTERVENTIONS
Instantaneous Unit Hydrograph hydrological parameters geomorphologic characteristics
2009/10/13
We present an improvement of Clark's Instantaneous Unit Hydrograph (IUH), which we call the "GAIUH", linking hydrological parameters and geomorphologic characteristics of flatland basins with strong h...
新疆铁干里克绿洲水文过程对土壤盐渍化的影响
绿洲 地下水埋深 土壤盐渍化 塔里木河
2009/9/16
在对塔里木河下游绿洲地表灌溉水和地下水水质特征及土壤盐分实测分析的基础上，探讨了地表水、地下水过程及其对土壤盐渍化的影响。结果显示：塔里木河下游绿洲灌区地表水矿化度与土壤表层0~50 cm盐分含量呈显著正相关，与50~100 cm土层含盐量相关性不显著；地下水埋深与土壤盐分含量密切相关，0~50 cm表层土壤盐分含量随地下水埋深的增加而下降，其中0~20 cm下降幅度最大。当地下水埋深较浅时，...
Pedo-transfer functions are largely used in soil hydraulic characterisation of large areas. The use of physico-empirical approaches for the derivation of soil hydraulic parameters from disturbed sam...
Using interactive recession curve analysis to specify a general catchment storage model
Master Recession Curve catchment storage
2009/6/8
An analysis of hydrograph recessions can be used to identify the parameters of a conceptual catchment storage irnodel and, with the advent of large-scale digital data storage and automated logging sys...
Mapping an index of extreme rainfall across the UK
rainfall digital terrain model maximum rainfall
2009/6/5
Distance from the sea, proximity of mountains, continentality and elevation are all useful covariates to assist the mapping of extreme rainfalls. Regression models linking these and other variables ca...